{{Short description|Palladium bismuthide mineral}} {{infobox mineral | name = Polarite | boxwidth = | boxbgcolor = | image = Palarstanide,_Plumbopalladinite,_Polarite_&_Atokite.jpg | imagesize = | alt = | caption = | category = Alloys with PGE | formula = {{chem2|Pd,(Bi,Pb)}} | IMAsymbol = Plr<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}</ref> | molweight = | strunz = 02.AC.40 | dana = | system = Orthorhombic | class = Pyramidal (mm2) <br/><small>(same H-M symbol)</small> | symmetry = ''Ccm2''<sub>1</sub> | unit cell = a = 7.19 Å, b = 8.69 Å, <br/>c = 10.68 Å; Z = 16 | color = White with yellowish tint | colour = | habit = Disseminated grains (microscopic) | twinning = | cleavage = | fracture = | tenacity = | mohs = 3.5 - 4 | luster = Metallic | streak = White | diaphaneity = Opaque | gravity = 12.51 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | references = <ref>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Polarite Mineralienatlas]</ref><ref name=Webmin/><ref name=Handbook/><ref name=Mindat>[http://www.mindat.org/min-3251.html Mindat.org]</ref> }} '''Polarite''', is an opaque, yellow-white mineral with the chemical formula {{chem2|Pd,(Bi,Pb)}}. Its crystals are orthorhombic pyramidal, but can only be seen through a microscope. It has a metallic luster and leaves a white streak. Polarite is rated 3.5 to 4 on the Mohs Scale.<ref name=Webmin>[http://webmineral.com/data/Polarite.shtml Webmineral data]</ref><ref name=Handbook>[http://rruff.geo.arizona.edu/doclib/hom/polarite.pdf Handbook of Mineralogy]</ref>
It was first described in 1969 for an occurrence in Talnakh, Norilsk in the Polar Ural Mountains in Russia.<ref name=Webmin/> It has also been recorded from the Bushveld igneous complex of South Africa and from Fox Gulch, Goodnews Bay, Alaska.<ref name=Handbook/>
== References == {{Reflist}}
Category:Palladium minerals Category:Bismuth minerals Category:Lead minerals Category:Orthorhombic minerals Category:Minerals in space group 36 Category:Minerals described in 1969
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